Elysium Planitia

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This article is about the plain on Mars. For other uses, see Elysium (disambiguation).
Elysium Planitia
Elysium Planitia topo.jpg
MOLA topographical map of Elysium Planitia.
Coordinates 3°00′N 154°42′E / 3.0°N 154.7°E / 3.0; 154.7Coordinates: 3°00′N 154°42′E / 3.0°N 154.7°E / 3.0; 154.7

Elysium Planitia, located in the Elysium and Aeolis quadrangles, is a broad plain that straddles the equator of Mars, centered at 3°00′N 154°42′E / 3.0°N 154.7°E / 3.0; 154.7.[1] It lies to the south of the volcanic province of Elysium, the second largest volcanic region on the planet, after Tharsis.

A 2005 photo of a locale within Elysium Planitia at 5° N, 150° E by the Mars Express spacecraft shows what may be ash-covered water ice. The volume of ice is estimated to be 800 km (500 mi) by 900 km (560 mi) in size and 45 m (148 ft) deep, similar in size and depth to the North Sea.[2] The ice is thought to be the remains of water floods from the Cerberus Fossae fissures about 2 to 10 million years ago. The surface of the area is broken into 'plates' like broken ice floating on a lake. Impact crater counts show that the plates are up to 1 million years older than the gap material, showing that the area solidified much too slowly for the material to be basaltic lava.[3]

The InSight mission is expected to land on Elysium Planitia in September 2016.[4]

See also[edit]

References[edit]

  1. ^ USGS Gazetteer of Planetary Nomenclature entry for Elysium Planitia
  2. ^ Young, Kelly (2005-02-25). "'Pack ice' suggests frozen sea on Mars". New Scientist. Retrieved 2007-01-30. 
  3. ^ John B. Murray et al., JB; Muller, JP; Neukum, G; Werner, SC; Van Gasselt, S; Hauber, E; Markiewicz, WJ; Head Jw, 3rd et al. (17 March 2007). "Evidence ... for a frozen sea close to Mars' equator". Nature 434 (7031): 352–355. Bibcode:2005Natur.434..352M. doi:10.1038/nature03379. PMID 15772653. 
  4. ^ Webster, Guy (4 September 2013). "NASA Evaluates Four Candidate Sites for 2016 Mars Mission". Latest News. Jet Propulsion Laboratory. 

External links[edit]


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